In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with any volume type (including non-privileged pods, subject to file permissions) can access files/directories outside of the volume, including the host's filesystem.
| Software | From | Fixed in |
|---|---|---|
| kubernetes / kubernetes | 1.3.0 | 1.3.10.x |
| kubernetes / kubernetes | 1.4.0 | 1.4.12.x |
| kubernetes / kubernetes | 1.5.0 | 1.5.8.x |
| kubernetes / kubernetes | 1.6.0 | 1.6.13.x |
| kubernetes / kubernetes | 1.7.0 | 1.7.14 |
| kubernetes / kubernetes | 1.8.0 | 1.8.9 |
| kubernetes / kubernetes | 1.9.0 | 1.9.4 |